Determining the Sex of Offspring at Fertilisation (Edexcel IGCSE Biology: Double Science)
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Biology Lead
Inheritance of Sex
Sperm cells determine the sex of offspring
- The inheritance of sex can be shown using a genetic diagram (known as a Punnett square), with the X and Y chromosomes taking the place of the alleles usually written in the boxes
Punnett square showing the inheritance of sex
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